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Latest Spin Stories

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2009-10-07 12:30:25

Any child can tell you that a magnet has a "north" and a "south" pole, and that if you break it into two pieces, you invariably get two smaller magnets with two poles of their own. But scientists have spent the better part of the last eight decades trying to find, in essence, a magnet with only one pole. A team working at the National Institute of Standards and Technology (NIST) has found one.* In 1931, Paul Dirac, one of the rock stars of the physics world, made the somewhat startling...

2009-09-23 07:48:08

Diamonds, it has long been said, are a girl's best friend. But a research team including a physicist from the National Institute of Standards and Technology (NIST) has recently found* that the gems might turn out to be a patient's best friend as well. The team's work has the long-term goal of developing quantum computers, but it has borne fruit that may have more immediate application in medical science. Their finding that a candidate "quantum bit" has great sensitivity to magnetic fields...

2009-09-22 09:21:22

Nuclear magnetic moment is one of the most important physical observables. The precise measurement of nuclear magnetic moment and its understanding in microscopic way are quite a challenge in nuclear physics. The research team at Peking University, who has dedicated to the study of nuclear structure and astrophysics for the last decades, has applied the configuration-fixed deformation constrained RMF approach with time-odd component to investigate the ground-state properties of 33Mg and...

2009-07-30 13:42:07

A team of physicists from the Universities of Cambridge and Birmingham have shown that electrons in narrow wires can divide into two new particles called spinons and a holons.The electron is a fundamental building block of nature and is indivisible in isolation, yet a new experiment has shown that electrons, if crowded into narrow wires, are seen to split apart.The electron is responsible for carrying electricity in wires and for making magnets. These two properties of magnetism and electric...

2009-06-24 12:56:47

Physicists have found a way to drastically prolong the shelf life of quantum bits, the 0s and 1s of quantum computers.These precarious bits, formed in this case by arrays of semiconductor quantum dots containing a single extra electron, are easily perturbed by magnetic field fluctuations from the nuclei of the atoms creating the quantum dot. This perturbation causes the bits to essentially forget the piece of information they were tasked with storing.A quantum dot is a semiconductor...

2009-06-15 12:43:39

Move over, silicon"”it may be time to give the Valley a new name. Physicists at the Department of Energy's (DOE) SLAC National Accelerator Laboratory and Stanford University have confirmed the existence of a type of material that could one day provide dramatically faster, more efficient computer chips.Recently-predicted and much-sought, the material allows electrons on its surface to travel with no loss of energy at room temperatures and can be fabricated using existing semiconductor...

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2009-06-01 11:55:04

Physicists in France may be leading the way to a new generation of IT wizardry after revealing on Sunday they had used ultra-fast lasers that could accelerate storage and retrieval of data on hard discs by up to 100,000 times, AFP reported. The latest achievement expands on Nobel physics prize winning research by Albert Fert of France and Peter Gruenberg of Germany, who ushered in a revolution in miniaturized storage in the 1990s. The duo won a Nobel in 2007 after they discovered that tiny...

2009-04-07 16:26:43

U.S. researchers say they have made a breakthrough in applied physics by controlling the spin of electrons at room temperature. North Carolina State University scientists said they have developed a magnetic semiconductor memory device, using certain thin films that utilize both the charge and spin of electrons at room temperature. The scientists said their achievement is a triumph in physics research, since previous devices that used magnetic semiconductors and controlled electron spin were...

2009-03-12 15:09:02

U.S. and Japanese physicists say they have demonstrated proof of principle of the existence of a 'spin battery' that's about the diameter of a human hair. Researchers at the University of Miami and the Universities of Tokyo and Tohoku in Japan said the battery is charged by applying a large magnetic field to nano-magnets in a device called a magnetic tunnel junction. They said the new technology is a step toward creation of computer hard drives with no moving parts and might be developed to...

2009-02-19 10:08:04

An international team of scientists, led by a Princeton University group, has observed an exciting and strange behavior in electrons' spin within a new material that could be harnessed to transform computing and electronics. "We believe this discovery is not only an advancement in the fundamental physics of quantum systems but also could lead to significant advances in electronics, computing and information science," said Zahid Hasan, an assistant professor of physics at Princeton, who led...


Latest Spin Reference Libraries

24_1c0ab0c13e5087199db0f92d17627518
2010-09-27 17:20:27

A gyroscope uses the principles of conservation and angular momentum to measure and maintain orientation. The mechanical gyroscope is a spinning wheel or disk whose axle is free to take any orientation. The gyroscope's high rate of spin allows for large angular momentum which makes the orientation changes much more responsive to a given external torque. There is also the electronic, microchip-packaged MEMS gyroscope, solid state ring laser and fiber optic gyroscope, as well as the extremely...

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